           :reaction (fn [this]
                       (let [active-ed (pool/last-active)
                             path (-> @active-ed :info :path)]
-                      (offences this (files/parent path) path))))
+                      (offences this (files/parent path) path rubocop-path))))
 
 (cmd/command {:command ::run-cop
               :desc "Rubocop: start"

       violations))

(def offences
  (background (fn [this cwd path]
                (.exec (js/require "child_process")
                       (str "/Users/seancaffery/.rbenv/shims/rubocop --format json '" path "'")
                       (clj->js {"cwd" cwd})
                       (fn [err stdout stderr]
                          (raise this :cop-finished stdout)

            [lt.objs.editor :as editor]
            [lt.objs.editor.pool :as pool]
            [lt.objs.files :as files]
            [lt.util.load :as load]
            [lt.objs.proc :as proc])
  (:require-macros [lt.macros :refer [defui behavior background]]))

(def exec (.-exec (js/require "child_process")))
(def shell (load/node-module "shelljs"))

(def rubocop-path (.which shell "rubocop"))

(defn violations-for-file [json-str]
  (let [parsed (js->clj (JSON/parse json-str))]
